20101110111110 has 128 divisors (see below), whose sum is σ = 45371501346816. Its totient is φ = 6252741918720.

The previous prime is 20101110111077. The next prime is 20101110111113. The reversal of 20101110111110 is 1111101110102.

It is a happy number.

20101110111110 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 20101110111091 and 20101110111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101110111113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8420627 + ... + 10540833.

It is an arithmetic number, because the mean of its divisors is an integer number (354464854272).

Almost surely, 2^{20101110111110} is an apocalyptic number.

20101110111110 is an abundant number, since it is smaller than the sum of its proper divisors (25270391235706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20101110111110 is a wasteful number, since it uses less digits than its factorization.

20101110111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120526.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 20101110111110 its reverse (1111101110102), we get a palindrome (21212211221212).

The spelling of 20101110111110 in words is "twenty trillion, one hundred one billion, one hundred ten million, one hundred eleven thousand, one hundred ten".